Correct

说不定

/ shuō bù dìng /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202103/说不定-Chinese-idioms-Cchatty-635957ba-c99a-46e5-a2d8-38be2ec19372-1615519881.jpg

Collocation

1
这事还说不定
2
能不能成功说不定
3
说不定他有办法
4
说不定能中个大奖

Definition

说不定

Literally means:

not sure; hard to say; maybe

Actually means:

1, It means that something is not yet decided or that it is not yet certain, so it is hard to make a definitely positive or negative judgment.

表示事情还没有最后确定下来,或对事情没有十分的把握,不能做出绝对肯定或绝对否定的判断。

2, It indicates a possibility. 表示存在一定的可能性。

Example

Used as predicate, adverbial adjunct. (作谓语、状语)
1
dào
到底
shénme
什么
shíhou
时候
dòngshēn
动身
  
,
lián
自己
shuōbudìng
说不定
  
,
也许
míngtiān
明天
  
,
也许
hòutiān
后天
  

When exactly will he leave, not even himself, maybe tomorrow, maybe the day after tomorrow.

2
Zhè
shì
yǒudiǎn
有点
nán
难度
  
,
zhǐnéng
只能
shì
shì
  
,
chénggōng
成功
huò
chénggōng
成功
  
,
shuōbudìng
说不定
  

It's a little difficult, I can only try it, successful or unsuccessful, maybe.

3
zànshí
暂时
不必
dìng
guǎn
旅馆
  
,
néng
néng
lái
hái
shuōbudìng
说不定
  

You don't have to book a hotel for him for the time being.

4
gāng
kāi
离开
zhè
这里
huíjiā
回家
  
,
kuài
gǎn
guò
过去
  
,
shuōbudìng
说不定
hěnkuài
很快
jiù
huì
zhǎodào
找到
  

He just left here and came home, you hurry up, maybe you'll find him soon.

5
Zhè
shì
可以
gēn
lǎozhāng
老张
tántán
谈谈
  
,
shuōbudìng
说不定
  
,
néng
gěi
chū
hǎo
zhù
注意
  

You can talk to Lao Zhang about it, maybe he can give you a good attention.

6
yǒu
zhème
这么
hǎo
de
shìqing
事情
ā
  
?
Shuōbudìng
说不定
shì
piàn
de
  
,
háishi
还是
xiǎoxīn
小心
diǎnr  
点儿
  

What's such a good thing? Maybe it's a lie to you, you'd better be careful.

Related

说不定